KR20060085212A - Temporary stop apparatus for sheet to be transmitted - Google Patents

Abstract

The present invention provides an apparatus for temporarily stopping a conveyed sheet, which can prevent damage to the folding during stop operation and stop release operation of the stopper.

An apparatus for temporarily stopping the flow of a conveyed sheet by allowing a conveyed sheet to be transported in a row by overlapping the conveyor on a transverse direction with a stopper to be lifted up, and having a stopper's operation setting device section. The stopper is lowered while moving from the stand-by position of the stopper in the transport downstream direction of the transport sheet, and the tipper side of the stopper is inclined downward toward the transport upstream side of the transport sheet, thereby allowing the transport sheet to climb on the stopper. A stop motion for stopping the flow of the transport sheet, and by moving and stopping the stopper at a speed faster than the transport speed of the transport sheet in the transport downstream direction of the transport sheet, the transport sheet on the stopper is slid and dropped onto the conveyor to Execute stop release operation to release stop Characterized in that to that.

Transport sheet, pause device, stopper, conveyor, stop operation, stop release operation

Description

TEMPORARY STOP APPARATUS FOR SHEET TO BE TRANSMITTED}

1 is a front view of a stacker with one embodiment of a pause device according to the present invention;

FIG. 2 is a front view illustrating the operation of the pause device of FIG.

FIG. 3 is a front view illustrating the operation of the pause device of FIG. 1; FIG.

* A brief description of the main drawing codes *

1: stopper 2: operation setting device

4: rotary arm 6: cam plate

7: Cam Follower 8: Camhome

100: stacker 101: conveyor

102: bundle bundle portion 103: edge detection means

104: control unit W: prefix

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a temporary pausing device for temporarily stopping a flow of a folding sheet (transport sheet) which is conveyed by being superimposed little by little on a conveyor after being discharged from a rotary press or the like.

Background Art [0002] A device is known in which a fold discharged from a rotator's folding device or the like is transported in an overlapped state by a slight shift on a conveyor, automatically aligned, counted and stacked by a stacker, and then bound by a bundler.

The stacker stacks the overlapped and transported stacks on the conveyor to the stack aggregator, but at a time when a certain number of copies are accumulated, the stack agglomerate (ie, the bundle) is pushed from the stack agglomer by the pusher to the next step (bundler). In order to be discharged into the furnace, it is necessary to temporarily block on the conveyor the flow of the grafting which is being transported to the bundling unit while the temporary receiving plate temporarily receiving the following grafting enters the bundling unit. At this time, the conveyor is discharged continuously from the previous printing press and the conveyor itself does not stop and continues the driving operation.

So-called having a press stopper which presses over the fold in order to temporarily brake the flow of the grafted conveyance as a means of temporarily stopping the flow of the fold, and a press body which moves the press stopper in a direction opposite to the transportation direction. A splitting device is known (for example, Japanese Unexamined Patent Application Publication No. 5-57186 and Unexamined Patent Application Publication No. 8-5179).

However, the fold is damaged by the crush on the stopper immediately before the fold in transit is pressed and stopped, and also when the releasing of the stopper is pressed, the fold that began to flow immediately after the start of the release operation is rubbed on the stopper and the printed portion of the fold is damaged. There was.

Accordingly, the present invention has been proposed to solve the above-mentioned problems, and an object thereof is to provide an apparatus for temporarily stopping a transport sheet, which can prevent damage to the folding during stop operation and stop release operation of the stopper.

The present invention has been completed through continuous research to solve the above problems.

According to the first aspect of the present invention. An apparatus for temporarily stopping the flow of the transported sheet by allowing the transported sheets to be transported in a row by overlapping in a transverse direction on the conveyor to be lifted up from the stopper, comprising: an operation setting device unit of the stopper; The device portion is lowered while moving the stopper from the stand-by position of the stopper in the transport downstream direction of the transported sheet, and the tip side of the stopper is inclined downward toward the transport upstream side of the transported sheet. A stop operation for stopping the flow of the transported sheet by ascending the transported sheet, and moving the stopper in a transport downstream direction of the transported sheet at a speed faster than the transport speed of the transported sheet to raise the stopper; Transportation on Pinterest By a sliding fall onto the conveyor provides for suspension of the blood transport device for the sheet characterized in that it executes the stop release operation for releasing the stop of the blood transport sheet.

According to the second aspect of the present invention, in the first aspect, the stopper temporarily stops the conveyed sheet by raising the stopper while increasing the inclination angle of the stopper. Provide the device.

According to the third aspect of the present invention, in the first and second aspects, the stopper at the standby position is substantially horizontal, and the tip side is set to face the transport upstream side of the conveyed sheet. Provided is a device for temporarily stopping a transported sheet.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the operation setting device portion includes a rotation arm and a cam mechanism portion attached to a rotation drive shaft, and the stopper includes the rotation center of the rotation arm. The rotation mechanism is mounted so as to be freely rotated by the rotational arm with the position eccentric from the rotational arm, and the cam mechanism part rotates while the stopper rotates by the rotation of the cam follower mounted on the stopper side and the rotational arm. Provided is a temporary stop device for a transport sheet, characterized in that it has an annular cam groove for guiding the cam follower to enable the stop operation and the stop release operation.

According to the present invention, the stopper is lowered while moving from the stand-by position of the stopper in the transport downstream direction of the transport sheet, and the transport sheet is loaded on the stopper by inclining the tip side of the stopper downward toward the transport upstream side of the transport sheet. Since it stops the flow of the transported sheet by stopping the flow of the transported sheet, the transported sheet can be stopped without pressing the transported sheet by the stopper, and as a result, the transported sheet will rub when pressed. To prevent damage.

Also, by stopping and moving the stopper in the transport downstream direction of the transport sheet at a speed faster than the transport speed of the transport sheet, the stopper operation for releasing the stop of the transport sheet by sliding the dropping of the transport sheet on the stopper over the conveyor is performed. Therefore, it is possible to prevent the conveyed sheet from being rubbed and damaged when releasing the stop of the conveyed sheet.

Further, when the stop release operation of the conveyed sheet is performed by raising the stopper while increasing the inclination angle of the stopper, the stop release can be quickly performed by smoothly sliding down the conveyed sheet from the stopper.

In addition, when the stopper in the standby position is almost horizontal, and the front end side is set to face the transport upstream side of the conveyed sheet, the stopper is allowed to stand in a state where the stopper is inclined from the beginning, and the stopper is maintained while maintaining the inclined state. Compared to lowering the space, the space between the stopper's standby position and the conveyor can be narrowed, thereby saving space.

Embodiments of the present invention will be described below with reference to the drawings. In addition, the following embodiment demonstrates a stacker as an example.

The stacker 100 includes a bundle stacker 102 located downstream of the conveyor 101 for transporting a fold (an example of a transport sheet) W; And a pause device (A) having a stopper (1) for temporarily stopping the flow of the foldable (W) transported on the conveyor (101). On the upstream side of the conveyor 101, an edge detecting means 103 for detecting an edge portion of the foldable W transported in a row by overlapping in a horizontal direction on the conveyor 101 is arranged, and the edge detecting means 103 is arranged. And the stopper 1 is installed between the small bundle accumulation unit 102. The stopper 1 is in the form of a vane, and a contact portion 1a of the folding W is formed on the upper surface side.

In addition, the conveyor 101 is composed of a plurality of strap-shaped belt pulley in an endless track manner. In the drawing, reference numeral 104 denotes a controller, 105 denotes a temporary receiving body, and 106 denotes a small pusher.

The pause device A includes the operation setting device portion 2 of the stopper 1. The operation setting device portion 2 includes a rotary arm 4 and a cam mechanism portion mounted to a horizontal rotation drive shaft 3 driven by a servomotor (not shown). The stopper 1 is freely mounted on the distal end shaft 9 which is eccentric from the center of rotation of the rotary arm 4. In addition, the balance weight 5 is attached to the end of the rotary electric arm 4.

The driving force of the drive shaft of the servomotor is transmitted to the rotary drive shaft 3 through an electric mechanism (not shown), and the rotary arm 4 is rotated around the axis of the rotary drive shaft 3 by the rotation of the rotary drive shaft 3. Let's do it. The cam mechanism portion has a cam follower 7 which is mounted on the proximal end side of the stopper 1 freely for idling, an annular cam groove 8 for guiding the cam follower 7 into the guide, and a cam groove 8 at the side. It has a cam plate 6 formed in.

The rotary arm 4 is rotated so that the cam follower 7 is guided to the cam groove 8 so that the stopper 1 idles and rotates to perform the next operation.

The cam follower 7 is guided to the bow-shaped portion 81 close to the straight line shown in FIG. 2 of the cam groove 8 from the standby position 10 of the stopper 1 indicated by the two-dot chain line in FIG. As shown by the arrow of the folding (W) in the transport downstream direction is lowered and at the same time the tip side of the stopper (1) inclined downward toward the transport upstream side of the folding (W) for the stopper (1) (W) ), The stopper 1 is lowered to a lower limit position at which the rod can rise, and the stopper 1 lowered to the position is stopped once. Thereby, the several folds W conveyed as shown in FIG. 3 ride up the stopper 1 which stopped, and contact the contact part 1a, and the transportation of the folds W is stopped.

The stopper 1 in the standby position 10 is almost horizontal, and the tip side of the stopper 1 is set to face the transport upstream side of the folding W. As shown in FIG. In this stop operation, the movement speed of the stopper 1 with respect to the transport downstream direction of the carriage W is set to be substantially equal to the transportation speed of the carriage W.

When the stop W is released after the folding W is stopped, as shown by the two-dot chain line in Fig. 3, the stopper 1 is faster than the transport speed of the folding W in the transport downstream direction of the folding W. It is made to carry out the stop release operation | movement which moves at a speed and raises the inclination angle of the said stopper 1, increasing. Thereby, as shown by the dashed-dotted line of FIG. 3, the folding W on the stopper 1 slides down on the conveyor 101, and the stop of the folding W is canceled. Thereafter, the stopper 1 is returned to the standby position 10.

The rotation speed of the conveyor 101 is detected by a speed detecting means (for example, a rotary encoder) not shown. The number of copies W is counted by counting means (not shown) composed of a counter IC or the like based on the detection signal from the edge detecting means 5.

As the edge detecting means 103, an optical detector which detects the surface height displacement by the reflected light of the light irradiated to the carriage W to be transported can be used. Since the step portion is generated at the edge portion of the foldable W that is overlapped and transported alternately, the edge portion of the foldable W can be detected by detecting the step. The optical detector preferably acts as a laser light but may use a light emitting diode or other light source. There is a laser counter provided with an optical detector and counting means. For example, a laser counter (SCATEC-1) manufactured by Baumer electric AG of Switzerland can be used. It is also possible to use an ultrasonic detector instead of an optical detector.

The control means 104, which is composed of a programmable controller or the like, counts from the counting signal from the counting means, the speed detecting signal from the speed detecting means, and the detection position of the edge detecting means 5 to the stop position by the stopper 1. The operation timing of the stopper 1 is calculated from the distance of and the stopper 1 is operated at the point in time at which the foldable W to be stopped has been transported.

As described above, the temporary stop device of the transported sheet according to the present invention has an effect of preventing damage to the splice during the stop operation and the stop release operation of the stopper.

Claims (4)

An apparatus for temporarily stopping the flow of the transported sheet by allowing the transported sheet to be transported in a row by overlapping the conveyor on a transverse direction with a stopper to temporarily stop the flow of the transported sheet. The operation setting device section lowers the stopper while moving the stopper from the stand-by position of the stopper in the transport downstream direction of the transported sheet, and inclines the tip side of the stopper downward toward the transport upstream side of the transported sheet. A stopping operation of stopping the flow of the transported sheet by allowing the transported sheet to rise up; And moving the stopper in a transport downstream direction of the transported sheet while moving at a speed faster than the transported speed of the transported sheet, thereby sliding the transported sheet on the stopper onto the conveyor to release the stop of the transported sheet. To execute the stop release operation. Pause device for transported sheet. The method of claim 1, The stopper is raised while increasing its inclination angle so as to execute the stop release operation of the conveyed sheet. Pause device for transported sheet. The method according to claim 1 or 2, The stopper is almost horizontal in the standby position, and the front end side is set to face the transport upstream side of the transported sheet. Pause device for transported sheet. The method according to any one of claims 1 to 3, The operation setting device portion includes a rotary arm and a cam mechanism portion attached to the rotation drive shaft, The stopper is freely mounted on the rotary arm with the rotation center as a position eccentric from the rotation center of the rotary arm, The cam mechanism part has a cam follower attached to the stopper side, and an annular shape for guiding the cam follower to enable the stop operation and the stop release operation by rotating the stopper by an idle movement by the rotation of the rotary arm. With cam groove Pause of transport sheet.

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